A triangular shaped tool with a sharp edge is called :
Wheel and axle
Pulley
Wedge
Lever
An example of class II lever is :
Beam balance
Pliers
Pair of seissors
Nut cracker
A knife is an example of which class of lever?
First
Second
Third
Fourth
Comparing a class II lever to class I lever the mechanical advantage is :
Lesser
Equal
Greater
Half
Pick out the odd one.
Knife
Needle
Door knobs
Nail
Efficiency = ?
Which of the following is not considered as a simple machine ?
Wheel barrow
Water can be drawn from the well with the help of ,which of the following equipment ?
Wheel-and-axle
The ratio of the work output to the work input is :
Mechanical advantage
Efficiency
Work
power
Point around which the lever rotates is called :
Load
Fulcrum
Effort
Centre
